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Class 10 Science के इस tag से जुड़े questions। हर question के साथ chapter, topic, level और difficulty दी गई है।

ScienceWhat is a water-soluble base called?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 14Easy ScienceRed litmus turns blue in a solution. What nature does it show?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 14Easy ScienceWhy are all bases not alkalis?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 13Medium ScienceA water-soluble base is known by which name?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 13Medium ScienceWhat colour does turmeric show when it comes into contact with a basic substance?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 13Medium ScienceWhich ion does sodium hydroxide mainly produce when dissolved in water?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 13Medium ScienceIn which direction does pH move when water is added to a basic solution?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 12Medium ScienceAll alkalis are bases but all bases are not alkalis. What is the reason?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 12Easy ScienceWhat is a water-soluble base called?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 12Easy ScienceTurmeric becomes reddish-brown in contact with what type of substance?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 12Medium ScienceWhat is the nature of a solution that turns red litmus paper blue?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 12Easy ScienceA substance forms salt and water with acid but remains insoluble in water. What will it be called?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 15Medium ScienceA substance forms salt and water with acid but is insoluble in water. What is it called?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 14Medium ScienceOn adding acid to a solution, the pink colour of phenolphthalein disappears. What was the initial nature of the solution?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 13Medium ScienceA substance forms salt and water with an acid but does not dissolve in water. What is it?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 13Medium ScienceA solution turns red litmus blue and does not release carbon dioxide when acid is added. Which substance is most likely?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 13Medium ScienceA substance forms salt and water with an acid but does not dissolve in water. What is it more correctly called?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 12Medium ScienceIf a substance forms salt and water with an acid but is insoluble in water, how should it be classified?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 10Medium ScienceWhat is a water-soluble base called?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 9Easy ScienceA substance does not dissolve in water but reacts with acid to form salt and water. What can it be called?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 7Medium